Last Frost Day

Frost history / Meriden Markham Muni Ap, CT

Meriden Markham Muni Ap, CT: frost dates by year

Last spring and first fall frost at NOAA station USW00054788, 1999 to 2024, measured from daily minimum temperatures.

Elevation 103 ft, 41.510, -72.828. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 26Oct 17
EarliestApr 9 (2017)Oct 3 (2003)
LatestMay 22 (2002)Nov 3 (2021)
Trend2.0 days later per decade5.9 days later per decade
Years with data2426

At 28°F (hard freeze) the median last spring date is Apr 7 and the median first fall date is Oct 30.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Mar 31Apr 15Apr 30May 15May 302000201020202000: Apr 142001: May 72002: May 222003: Apr 252004: Apr 102006: Apr 112007: Apr 212008: May 12009: Apr 242010: May 112011: May 62012: Apr 302013: May 152014: Apr 212015: Apr 262016: Apr 162017: Apr 92018: Apr 242019: Apr 292020: May 142021: Apr 242022: Apr 302023: May 182024: Apr 26

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 112000201020201999: Oct 72000: Oct 82001: Oct 82002: Oct 152003: Oct 32004: Oct 62005: Oct 272006: Oct 142007: Oct 292008: Oct 192009: Oct 122010: Oct 102011: Oct 282012: Oct 122013: Oct 242014: Oct 202015: Oct 172016: Oct 252017: Oct 172018: Oct 182019: Oct 192020: Oct 302021: Nov 32022: Oct 92023: Nov 12024: Oct 15

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2024Apr 26Oct 15Mar 22Nov 10
2023May 18Nov 1Apr 8Nov 2
2022Apr 30Oct 9Apr 29Nov 14
2021Apr 24Nov 3Apr 4Nov 4
2020May 14Oct 30Apr 23Oct 30
2019Apr 29Oct 19Apr 2Nov 4
2018Apr 24Oct 18Apr 12Oct 19
2017Apr 9Oct 17Mar 30Nov 9
2016Apr 16Oct 25Apr 9Nov 13
2015Apr 26Oct 17Apr 25Oct 18
2014Apr 21Oct 20Apr 10Nov 8
2013May 15Oct 24Apr 4Oct 25
2012Apr 30Oct 12Apr 6Oct 13
2011May 6Oct 28Mar 30Oct 30
2010May 11Oct 10Mar 28Oct 23
2009Apr 24Oct 12Mar 26Nov 7
2008May 1Oct 19Apr 3Oct 20
2007Apr 21Oct 29Apr 11Oct 29
2006Apr 11Oct 14Apr 6Oct 27
2005no dataOct 27no dataNov 11
2004Apr 10Oct 6Apr 10Nov 4
2003Apr 25Oct 3Apr 6Oct 20
2002May 22Oct 15Apr 27Oct 24
2001May 7Oct 8May 7Oct 9
2000Apr 14Oct 8Apr 14Nov 18
1999no dataOct 7no dataOct 19

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.